81 entries under quiet topic. ×

11
unflappable(adjective, calm, cool, moderate)
8
collected(adjective, calm, cool, moderate)
8
neutral(adjective, calm, cool, moderate)
8
unexcitable(adjective, calm, dull, cool)
7
unruffled(adjective, calm, cool, moderate)
6
inscrutable(adjective, dull, cool, moderate)
6
quiescent(adjective, cool, secure, still)
6
restful(adjective, cool, moderate, gentle)
6
still(adjective, cool, moderate, gentle)
6
undisturbed(adjective, cool, moderate, gentle)
5
self-controlled(adjective, calm, cool, relaxed)
5
smooth(adjective, calm, cool, relaxed)
4
mild(adjective, cool, restrained, still)
4
moderate(adjective, calm, cool, gentle)
4
reposeful(adjective, cool, still, peaceful)
3
equable(adjective, calm, cool, moderate)
3
inactive(adjective, dull, cool, weak)
2
coolheaded(adjective, calm, relaxed, casual)
2
halcyon(adjective, cool, still, peaceful)
2
hushed(adjective, cool, still, peaceful)
11 years ago|20k views|share |citing 
APASmart Define. (2015). impassive thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/impassive/thesaurus/synonyms
ChicagoSmart Define. 2015. "impassive thesaurus" https://smartdefine.org/impassive/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, impassive thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/impassive/thesaurus/synonyms>.
MLASmart Define. "impassive thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/impassive/thesaurus/synonyms>